Over the last few years I have begun to feel down about the changing dynamic of my family. I'm 40 so now have my own husband and child but I mean my parents and siblings. My parents are ageing, my relationships with my siblings have all but disintegrated - I see them on polite terms once a year. Is this just what happens? Should I just over it? I can't help feel sad about it although I realise I am to blame for some of it.